scripts/ci/docker-compose/backend-mysql.yml

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---
services:
  airflow:
    environment:
      - BACKEND=mysql
      - AIRFLOW__DATABASE__SQL_ALCHEMY_CONN=mysql://root@mysql/airflow?charset=utf8mb4
      - AIRFLOW__CELERY__RESULT_BACKEND=db+mysql://root@mysql/airflow?charset=utf8mb4
    depends_on:
      mysql:
        condition: service_healthy
  mysql:
    image: mysql:${MYSQL_VERSION}
    environment:
      - MYSQL_ALLOW_EMPTY_PASSWORD=true
      - MYSQL_ROOT_HOST=%
      - MYSQL_DATABASE=airflow
    volumes:
      - ../mysql/conf.d:/etc/mysql/conf.d:ro
      - mysql-db-volume:/var/lib/mysql
    healthcheck:
      test: ["CMD", "mysql", "-h", "localhost", "-P", "3306", "-u", "root", "-e", "SELECT 1"]
      interval: 10s
      timeout: 10s
      retries: 5
    restart: "on-failure"
    command: ['mysqld', '--character-set-server=utf8mb4',
              '--collation-server=utf8mb4_unicode_ci']
volumes:
  mysql-db-volume: